Performance Analysis of a New OFDM-CDMA System with Pilot Tone for Multimedia Communications


IEICE TRANSACTIONS on Communications   Vol.E88-B   No.8   pp.3480-3483
Publication Date: 2005/08/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.8.3480
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
OFDM-CDMA system,  pilot tone,  channel estimation,  

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In this letter, we analyze a solution for multiple access technique based on OFDM-CDMA with pilot tone. The proposed system is designed to provide higher data rates in multimedia wireless communications. Primarily, it is achieved by introducing a serial to parallel converter with a pilot tone implemented in each of its output branches. The bit error rates (BER) performance of the proposed scheme are evaluated using computer simulations. The results show that the presented OFDM-CDMA system provides high data rates and low BER and, for the same bandwidth, it performs better than its competitive solution.